I'm terrified

Ok, so please don't judge, but i had 100% unprotected sex on Monday the 3rd. I'm terrified. Honestly i don't know why i did it, i guess it was just in the moment, but if I'm pregnant my mom will literally disown me, not to mention never let me see my boyfriend again. he and i had a talk, and we both agreed its best if we dont do it again, because we don't wanna risk anything. we're both really young. but now I'm begging god to give me my period because I'm so so so scared that I'm pregnant, and tbh i don't even know how I'd tell if i was other than missing my period, which i wont be able to tell cuz I'm not supposed to get it for a few weeks yet. can any one say anything to make me feel better about this